This is the second child for the MTV star, who married the Chicago Bears quarterback in June. The newlyweds already have son Camden, who turned 1 over the summer.

Cavallari segued from her reality-TV celebrity into a fashion career and now designs shoes for Chinese Laundry. But she seems to be comfortably settled into her greater role as a mom and the idea of having more kids.

"We want to have a second sooner rather than later," she told E! News earlier this year. "We're working on it!"

"We know we want another one close in age to Camden and we're at the point where we're both ready," she added. "Before Camden was born, I thought I'd be pregnant again by the time he was six months, but I definitely wasn't ready. Now, I'm finally ready."

The family lives all over the U.S., spending time in Los Angeles, Nashville and Chicago. In April, she told L.A.'s Coco Eco magazine that she was putting her fledgling acting career on hold to focus on her brood.

"I've passed on a couple of things that would have kept me here in L.A. because my [then-]fiancé Jay has to be in Chicago, so if I was here, we would never see each other," she said. "The sacrifices we make for love …"

"It's easy to get wrapped up in your career and have that be your only focus, and I want my marriage to work and last — and family comes first," she said. "The design work is great because I can do most of it from Chicago and I have so much fun with it. I love it and it all works out."